RE: what do airbox mods do to torque?

["Squier, Craig" <craig_squier@arvin.com>]

Actually, since your intake runners are a fixed length, that is the thing
that really affects where the power/torque peaks are. Increasing airflow can
only result in increased power as long as your car can maintain fuel mixture
with the additional air.

On a car with a Mass Airflow Sensor, this isn't so hard at all. I believe
the stock VR6 injectors and MAF are good up to about 250hp without
software/hardware modifications. 

My GLX pulls like a horse from 2000 rpm even. The torque peak is high
compared to the 4 cylinders, but the amount of torque is huge. A VR6 has
like 30-40 ft-lb more torque at 2000rpm that the old 4 cylinders did at
peak.
The VR6 cars are a little heavier, but are properly geared to account for
this.

Heck, I can squeal the tires shifting into second, so I know there's oomph
there.

Of course, everyone's mileage will vary. Depends alot on how you drive, what
gas you run, where you live (Denver cars are kinda slower than LA cars,
ayah?)
and what kind of roads you drive on. Down here in the south we have these
pebble surface macadam roads. They have awesome grip, but they shred the
bejesus out of your tires.

Hope this helps
Cab
95 J3 GLX
AutoTech SS304 Exhaust (Big-ass trumpet tailpipe)
Airbox mods, K & N Filter
Brembo Vented/Slotted/Cross-Drilled and Metalmasters
Blue Igniter Wires
Razo Big Honkin' Pedal Kit (Heel-Toe is cake now)
Mobil-1 15w50
Fahrvergnugen (Hey, it's a feature they listed on the Retail Sticker. I bet
that's good for 50hp!)  ;)


> ----------
> From: 	Steve Meredith[SMTP:smeredith@hotmail.com]
> Reply To: 	jettaglx@igtc.com
> Sent: 	Thursday, March 11, 1999 12:49 PM
> To: 	jettaglx@igtc.com
> Subject: 	what do airbox mods do to torque?
> 
> I've been reading that people here are generally happy with various 
> airbox mods. I thought that increasing the airflow would increase the hp 
> at higher RPM's while actually decreasing the torque at lower RPM's. The 
> hp is pretty good starting at 4000, but the low-end torque isn't great, 
> and I wouldn't want to do anything to lower it. Is my thinking off-base?
> 
> -Steve
> Get Your Private, Free Email at http://www.hotmail.com
>